Hi Kristalynn, this is the first Korean hallmark question we have received and we would love to see the jewelry markings on your lovely heirloom ring, if possible.
I thought it was interesting that Korea shares elements of both Chinese and Japanese cultures. Me-thinks you might need to throw a sprat to catch a mackerel to find the answer to this jewelry mark.
I would suggest, a Paid Expert Opinion (which is a separate service) and we can then allocate an expert in this particular area, to find out as much as possible about this mark. An image of the mark, preferable three will need to be provided. One as close-up as possible. Second of the mark and surrounding area. A third of the entire lovely ring.
Images can be sent to harrisrebecca@me.com after completing the form.